.banner {
  width: 100%;
  height: auto;
}
.banner img {
  display: block;
  width: 100%;
  height: auto;
}
.content .container .brief {
  margin-top: 97px;
}
.content .container .brief li {
  display: flex;
  justify-content: space-evenly;
  align-items: center;
}
.content .container .brief li div .big_title {
  display: block;
  width: 255px;
  position: relative;
  margin: 0px auto 48px;
}
.content .container .brief li div .big_title h2 {
  font-size: 74px;
  color: #e0e0e0;
  font-weight: bold;
}
.content .container .brief li div .big_title h3 {
  position: absolute;
  top: 32px;
  left: 88px;
  width: 115px;
  height: 32px;
  background-color: #ffffff;
  font-size: 20px;
  color: #000000;
  text-align: center;
  line-height: 32px;
}
.content .container .brief li div p {
  width: 536px;
  font-size: 14px;
  color: #606a6c;
  line-height: 34px;
  text-indent: 17px;
}
.content .container .brief li div p ~ p {
  margin-top: 45px;
}
.content .container .brief li:nth-child(2) {
  margin-top: 81px;
}
.content .container .brief li:nth-child(2) div p {
  width: 495px;
}
.content .container .icon {
  display: flex;
  justify-content: space-evenly;
  margin: 108px auto 42px;
}
.content .container .icon li {
  text-align: center;
}
.content .container .icon li h3 {
  font-size: 16px;
  color: #000000;
  margin: 32px auto 22px;
}
.content .container .icon li p {
  font-size: 14px;
  color: #bbbbbb;
  line-height: 32px;
}
